mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-08 13:11:49 +00:00
85 lines
2.3 KiB
C++
85 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#pragma once
|
|
#include <mesosphere/kern_common.hpp>
|
|
|
|
#ifdef ATMOSPHERE_ARCH_ARM64
|
|
#include <mesosphere/arch/arm64/kern_cpu.hpp>
|
|
|
|
namespace ams::kern::cpu {
|
|
|
|
using namespace ams::kern::arch::arm64::cpu;
|
|
|
|
}
|
|
|
|
#else
|
|
#error "Unknown architecture for CPU"
|
|
#endif
|
|
|
|
#ifdef ATMOSPHERE_BOARD_NINTENDO_NX
|
|
|
|
#include <mesosphere/board/nintendo/nx/kern_cpu_map.hpp>
|
|
|
|
namespace ams::kern::cpu {
|
|
|
|
using namespace ams::kern::board::nintendo::nx::impl::cpu;
|
|
|
|
}
|
|
|
|
#elif defined(ATMOSPHERE_BOARD_QEMU_VIRT)
|
|
|
|
#include <mesosphere/board/qemu/virt/kern_cpu_map.hpp>
|
|
|
|
namespace ams::kern::cpu {
|
|
|
|
using namespace ams::kern::board::qemu::virt::impl::cpu;
|
|
|
|
}
|
|
|
|
#else
|
|
#error "Unknown board for CPU Map"
|
|
#endif
|
|
|
|
namespace ams::kern {
|
|
|
|
namespace cpu {
|
|
|
|
static constexpr inline size_t NumVirtualCores = BITSIZEOF(u64);
|
|
|
|
static constexpr inline u64 VirtualCoreMask = [] {
|
|
u64 mask = 0;
|
|
for (size_t i = 0; i < NumVirtualCores; ++i) {
|
|
mask |= (UINT64_C(1) << i);
|
|
}
|
|
return mask;
|
|
}();
|
|
|
|
static constexpr inline u64 ConvertVirtualCoreMaskToPhysical(u64 v_core_mask) {
|
|
u64 p_core_mask = 0;
|
|
while (v_core_mask != 0) {
|
|
const u64 next = util::CountTrailingZeros(v_core_mask);
|
|
v_core_mask &= ~(static_cast<u64>(1) << next);
|
|
p_core_mask |= (static_cast<u64>(1) << cpu::VirtualToPhysicalCoreMap[next]);
|
|
}
|
|
return p_core_mask;
|
|
}
|
|
|
|
}
|
|
|
|
static_assert(cpu::NumCores <= cpu::NumVirtualCores);
|
|
static_assert(util::size(cpu::VirtualToPhysicalCoreMap) == cpu::NumVirtualCores);
|
|
|
|
}
|